
Adolfo Daniel Vallejo defeated Learner Tien 6-4 6-3 in the Madrid Masters round of 64 on clay. The upset overturned the form book — Learner Tien came in ranked #12, defending last year's round of 128.
No previous meetings on record.
Averages over each player's completed matches in the selected window (32 vs 29). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Vallejo A.: 2 days rest · 3 matches, 64 games (7d) · Tien L.: 1 day rest · 3 matches, 69 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About